Automatic dump body



Dec. 8, 1925 R. E. SMITH ET AL.

AUTOMATIC DUMP BODY Filed Feb. 16,

2 Sheets-Sheet -2 Patented Der. 8, 1925.

UNITED STATES PATENT OFFICE.

RALPH E. SMITH, JOHN C. GAY, AND BOY J. ARNOLD, OF GALION, OHIO, ASSIGNORS TO THE GALION METALLIC VA'ULT COMPANY, OF GALION, OHIO, A CORPORATION OF OHIO.

AUTOMATIC DUMP BODY.

Application led February 16, 1925.

To all whom t may concer/n.:

Be it known that we, RALPH E. SMITH, JOHN C. GAY, and ROY J. ARNOLD, citizens of the United States, residing at Galionq in the county of Crawford and State of Ohio, have invented certain new and useful lmprovements in Automatic Dump Bodies, of which the following is a specication, reference being had therein to the accompanying drawing.

Our invention relates to dump bodies and in particular to an automatic type of dump body, generally known as a hopper type.

The object of our invention is to provide an automatic body of the hopper type which is particularly adaptable for use in carrying and dumping concrete and other wet mixtures. It is necessary in dumping vsuch material to secure a much greater dumping angle than is necessary with other types of materials and other types of bodies.

lt is a further object of our invention to provide a body and supports therefor so arranged that when the body is released at one end the weight of the material in it will unbalance the body and cause it to turn upon its successive supports until the body is completely discharged whereupon the material having left the body, the body can be returned on its pivotal supports to its original position to be reloaded.l

It is a further object to provide a simple form of pivotal support which shall permit of this complete dumping action, which shall be 'easy to construct and cheap to manufacture, which shall be subjected to the minimum wear, and which will not become clogged with foreign material preventing its operation.

Referring to the drawings:

Figure 1 is a side elevation partially in section of the dump body, its supporting pivots and frame. This view also shows the relative position of the body to the cab seat, cab, and the method of unlocking the body;

Figure 2 is a section on the line 2 2 of Figure 1;

Serial No. 9,580.

Figure 3 is a section on the line 3-3 of Figure 1;

Figure 4 is a detail elevation showing the chain and spring control for limiting the dumping movement of the body to prevent it from rocking off of the frame completely on dumping; and

Figure 5 is an elevation in detail of the rocking casting and hook.

Referring to the drawings in detail, 1 is a body frame U-shaped in section. Such a frame member is located on either side of the truck o-r vehicle 0n which this mechanisin is mounted. These spaced parallel side members 1 are connected together by bolts 2 to an angle iron 3 which extends beneath and across the end of the member 1. This angle iron 3 carries an angle bracket 4 which is provided with an eye 5 carrying a pivot rod 6 held in position in the bracket by the cotter pin 7 This rod 6 carries a bracket 8 in which is threaded the latch bolt 9. This bolt is held in position by the nut 10. The upper end of the bolt is provided with a hook 11. This hook 11 engages with a cross rod 12 carried beneath and spaced from the bottom of the body or hopper 13 on an angle bracket 14 which is connected at one end as at 15 to a bolt 16 to the vertical wall 17 on the front of the dump body and to an upturn'ed flange 18 on the bottom wall of the dump body. This bottom wall extends along the bottom and thence upwardly at an angle of approximately 45 degrees to form the rear wall 19 of the dump body. 71 is a return spring for the latch.

This bracket 14 extends beneath the bottom of the dump body and then downwardly into a 'flange 20 which is connected by a bolt 21 to a transverse angle iron support 22 which is adjacent to the bottom of the dump body and serves to position the dump body at its front end above the sid-e rails when in a predetermined position. lhen the transverse angle iron 22 is in such a position that its lower edge 23 rests upon the top of the side rails 1 then the latch bolt 9 can be tio hooked over the rod 12 carried by the bracket- 14. This holds the body in its horizontal position *for loading or carrying a load or for traveling empty. This latch bolt 9 is controlled by a link 24 pivoted on the bolt at 25 on a cross pin 26. This link 24 proceeds forwardly to a point where it passes through an angle bracket 27 in which it is adjustably held and positioned by a nut 28 working on the threaded end'29 o'lV the link 24. This bracket 27 is connected to an actuating lever 30 which extends adjacent to the cab seat 31, where the opera-tor is located. A lever is pivoted 4on the cab floor 32 on an upstanding angle bracket which is attached to the floor board 32 by the bolt 34. The back ot' the cab designated 35.

The upper edges ot the body are turned over as at 36.

The siderails l are joined together by a plurality oi' spaced rods or bers 37, .38 and 39. These bars occur in the order they are named reading trom the iront ot the vchicle tothe rear. The bars 37 and 38 are spaced at the same elevation but the bar 39 is located in a substantially lower plane than are the first two bars and at a greater distance from the nearest bar 38 than the bars 37 and 38 are trom each other. es will be hereinafter explained. this provides for a lowering` of the pivot point aboutwhich the body is turning' when dum ving which tacilitetes the dumping` ot material without accumulationor sticking in the hopper. These rods are maintained in position by the cotter pins 40. They are supported in the side rails in collars 4l which are longer than the side rails are thick so that a broad bearing' surface is provided tor these rods which prevents wear.

The 'forward rod 3? is also 4provided with a bolt 42 having an eye 43 in which is hooked a helical spring; 44. The other end of the spring` is connected to a link 45. This link has connected thereto a short chain 4G which is connected to the inside rear tace ot the angle iron 3 by a hook or eye 47. This chain serves to suspend in a predetermined position the lower end of the spring 44.

The link 45 has also connected to it a longer chain 48 which passes forwardly beneath the transverse angle iron 3 and upwardly to a bracket at the forward end ot the body designated This chain limits, and through the spring yieldingly cushionsI the rearwardniovement ot' the body when it is being dumped.

Tn order to permit this dun'iping the body is provided on either side with spaced inwardly facing angle irons having transverse 'j' members and vertical members 51. The transverse members lie along the bottom ot the body adjacent the side rails l. These depending ribs 51 carry bolts 52 which attach thereto the brackets or jaws which serve as the supports vfor the body as these jaws rock upon the rods 37, 38 and 89 successively. Two brackets are provided on either side. The first or forward bracket consists ot a single member having an overlapping flange 5B which travels rearwardly and upwardly at 54 parallel to the 5l which travels rear Yardly and upwardly substantially from one end ot the bot y to the other beneath the body. This first or forward bracket has two downwardly extending, wide-ly daring aws 55 and 56 which lrest respectively `upon the rods 37 and 38. A hook member extends between the rods 37 and over this side bracket as at 57 and thence forwardly beneath the rod 38 as at 58, to limit the upward movement ot the body when it is in its horizontal position ready to be filled, or filled.

Carried on the rear wall portion ot the body are the brackets 59 on either side ot the body atz-.ched to the flange 5l. These l' :ackets carry the jaws 60 which rock upon the transverse rod Each jaw is pro vided with a forward vertical brace 6l. "ross the body is provided a brace on the wall i9 on the outside thereoi".

3 will be observed in Figure v2 that the wall 63 of the body terminates in a tlange f extending beneath the bottoni ot Ott the body.

Tt will also be noted that the jawsl 56 and are broadened at G5 to provide broad 'bearingl sui-tacos and are provided with flying buttresses 653 and 67 to add strength to th structure.

The side rails i attached by the bolts to the truck 69. the method ot attachnient wilt v" body and l llhe tort-'ard end ot tl e bracket 553 is provided with a? outwardly extending shoulder v.-. ch serve a.' a. 'further body support on the side rails. This: shoulder is marked 70.

it will be understood that we desire to comprehend within our invention sci-h modifications as may be necessary to'adapt it to varying conditions oi use, ivle do not desire to contine ourselves to details of const-ruction and the lik Having thus 'fully described our inveir tion. what we claim as new and desire to secure by Letters Patent, is :m

l. Tn an automatic dump body construction. a supporting,l traine having spaced side eers and transverse supports joining said spaced site members, a dump body an overhanging rear portion and so that when empty it vill maintain ion to be loaded and loaded will Ain a position to unload, a plurality ot .paced jaws on either side ot said body on the. bottom and yrear wall thereof, said jaws being adapted to suc- .noing ipon the type ot' cessively rock upon the transverse supports one of said jaws being located at the body bottom near the rear wall of the body, another at the corner ot the body bottom and the rear wall ot the body, and the third on the rear wall oi' the body, and means adjacent the front of the bottom oi' the body tor supporting the body in horizontal position when it is resting on the orwardmost transverse support and orwardmost jaws, the rearmost or said transverse supports being lower than theA forward supports, and a depending bracket on each side or the body extending between two of said supports and under one oi them.

2. ln an automatic dump body construction, a supporting iframe having spaced side members and transverse supports joining said spaced side members, a dump body having an overhanging rea-r portion and so arranged that when empty it will maintain the position to be loaded and loaded will tend to attain a position to be unloaded, a plurality of spaced jaws arranged on either side of said body on the bottom and rear wall thereof, said aws being adapted to successively rock upon the transverse supports, one of said jaws being located at the rear ot the body bottom, another at the corner of the body bottom and the rear wall of the body and the third on the rear wall ot the body, and means adjacent the iront of the bottom oic the body for supporting the body in horizontal position when it is rest-ing on the orwardmost transverse support and torwardmost jaws, the rearmost of said transverse supports being lower than the forward supports, and a depending bracket on either side of the body extending between two ot' said transverse supports and under one of them, and limiting means having associated therewith resilient means to limit the rearward movement or' said body to prevent it leaving the supports entirely.

3. ln an automatic dump body construction, a supporting trame having spaced side members and transverse supports joining` said spaced side members, a dump body having an overhanging rear portion and so arranged that when empty it will maintain the position to be loaded and loaded will tend to attain a position to be unloaded, a plurality of spaced jaws arranged on either side oi said body on the bottom and rear wall thereof, said jaws being adapted to successively rock upon the transverse support-s, one of said jaws being located at the rear of the body bottom, another at the corner or' the body bottom and the rear wall ot the body and the third on the rear wall oi" the body, and means adjacent the t'ront ot the bottom of the body for supporting the body in horizontal position when it is resting on the torwardmost transverse support and torwardmost jaws, the rearmost of said transverse supports being lower than the forward supports, and al depending bracket on either side ot' the body eX- tending between two of said transverse supports and under one of them, and limiting means having associated therewith resilient means to limit the rearward movement of said body to prevent it leaving the supports entirely, and means for supporting said limiting means and resilient means in a predetermined position.

/l. ln an automatic dump body construction, a supporting frame having spaced side members and transverse supports joining said spaced side members, a dump body having an overhanging rear portion and so arranged that when empty it will maintain the position to be loaded and loaded will tend to attain a position to be unloaded, a plurality of spaced jaws arranged on either side of said body on the bottom and rear wall thereof, said jaws being adapted to successively rock upon the transverse supports, one of said jaws being located at the rear of the body bottom, another at the corner of the body bottom and the rear wall ot the body and the third on the rear wall of the body, and means adjacent the front oi' the bottom of the body for supporting the body in horizontal position when it is resting on the forwardmost transverse support and orwardmost jaw, the rearmost of said transverse supports being lower than the forward supports, and a depending bracket on either side oit' the body extending between two of said transverse supports and under one of them, a latch member adapted to engage with said body to hold it in horizontal position, yielding means to maintain said latch member in position, and means associated with the vehicle for unlatohing said latch from the body to permit it to dump when loaded by rocking on the successive supports.

5. In combination, side rails, transverse rods located at spaced intervals /thereiin broad bearing members supporting said rods in said side rails, a dump body, a plurality of spaced rocking jaws on either side of the bottom and rear wall of the body, said jaws having broad bearing faces adapted to rest on said transverse rods adjacent the said rails on either side of the body, means to position the body when in horizontal position and supported at its forward end on the side rails.

6. In combination, side rails, transverse rods located at spaced intervals therein, broad bearing members supporting said rods in said side rails, a dump body, a plurality of spaced rocking jaws on either side of the bottom and rear wall of the body, said jaws having broad bearing faces adapted to rest on said transverse rods adjacent the said rails on either side of the body, means to position the boy when in it dumps upon being unlatched .and when -'lorzontal position ancx supported at its unloading. forwzud end on the side rails, means yto 1n testimony whereof. We our signa-y 10 detnchably, automncnlly kim said body tures.

5 when it assumes n ho'izgoxol poston, means RALPH E. SMITH.

to unlatch it at Wily and moons to yeld- JOHN C. GAY. inglylmit the movemento'f the body Vwhen ROY J. ARNOLD. 

